Nelson River Spilling into Hudson Bay, Canada – May 27th, 201357.2N 92.2W
The Nelson River is a river of north-central North America, in the Canadian province of Manitoba. Its full length is 2,575 kilometres (1,600 mi), draining Lake Winnipeg before flowing into Hudson Bay, into which it can be seen spilling sediments here.
The river has a mean discharge of 2,370 cubic metres per second (84,000 cu ft/s), and has a drainage basin of 892,300 square kilometres (344,500 sq mi), of which 180,000 square kilometres (69,000 sq mi) is in the United States.
The Nelson River watershed is the second largest basin in Canada by population (5,492,879 inhabitants in 2011) and has a surface area about 987,000 km2 among which 472,000 km2 were used for agricultural purposes in 2006. This territory includes 70% of the land dedicated to agriculture in Canada. Due to the vast expanse of cultivated land, more pesticides are used in the Prairies than in any other region in Canada. Aquatic ecosystems are therefore becoming vulnerable to pesticide contamination (click here for more information).